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| 講演名 | 2015-11-12 13:00 Estimation of sound pressure levels of direct sound and reflected sounds based on single-channel signal separation ○Irwansyah・Taira Onoguchi・Yoshifumi Chisaki（Kumamoto Univ.）  EA2015-24 EMM2015-45 |
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| 抄録 | （和） | Recent studies have shown that the reflected sounds from nearby buildings affect the speech intelligibility of public address (PA) systems. Therefore, the PA system volumes and the loudspeaker directions should be adjusted to compensate for the effect of reflected sounds which can change over time due to building construction. This study aims at estimating the sound pressure levels (SPLs) of direct sound and reflected sounds that can be taken as a consideration before adjusting the PA systems. This paper proposes an approach for separating direct sound and reflected sounds that employs time-frequency information of a single-channel signal. This method consists of three steps: (1) the estimation of time difference of arrivals (TDOAs) between direct sound and reflected sounds, (2) the estimation of reflected-to-direct gain ratios (RDRs), and (3) the single-channel signal separation based on (1) and (2) in frequency domain. Numerical tests were conducted to evaluate the performance of the proposed method. The results show that the proposed method is able to separate direct sound and up to five reflected sounds as well as estimate its SPLs. |
| （英） | Recent studies have shown that the reflected sounds from nearby buildings affect the speech intelligibility of public address (PA) systems. Therefore, the PA system volumes and the loudspeaker directions should be adjusted to compensate for the effect of reflected sounds which can change over time due to building construction. This study aims at estimating the sound pressure levels (SPLs) of direct sound and reflected sounds that can be taken as a consideration before adjusting the PA systems. This paper proposes an approach for separating direct sound and reflected sounds that employs time-frequency information of a single-channel signal. This method consists of three steps: (1) the estimation of time difference of arrivals (TDOAs) between direct sound and reflected sounds, (2) the estimation of reflected-to-direct gain ratios (RDRs), and (3) the single-channel signal separation based on (1) and (2) in frequency domain. Numerical tests were conducted to evaluate the performance of the proposed method. The results show that the proposed method is able to separate direct sound and up to five reflected sounds as well as estimate its SPLs. | |
| キーワード | （和） | Sound pressure level / Single-channel signal / Direct sound / Reflected sound / Time difference of arrivals / / / |
| （英） | Sound pressure level / Single-channel signal / Direct sound / Reflected sound / Time difference of arrivals / / / | |
| 文献情報 | 信学技報, vol. 115, no. 302, EA2015-24, pp. 1-6, 2015年11月. | |
| 資料番号 | EA2015-24 | |
| 発行日 | 2015-11-05 (EA, EMM) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| 著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します．(許諾番号：10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| PDFダウンロード | EA2015-24 EMM2015-45 |
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| 研究会情報 | |
| 研究会 | EA EMM |
| 開催期間 | 2015-11-12 - 2015-11-13 |
| 開催地（和） | 熊本大学 |
| 開催地（英） | Kumamoto Univ. |
| テーマ（和） | 異種メディア融合，コンテンツ処理，メディア検索，電子透かし，一般 |
| テーマ（英） | Multimedia Fusion, Content Processing, Multimedia Retrieval, Digital Watermarking, and Related Topics |
| 講演論文情報の詳細 | |
| 申込み研究会 | EA |
| 会議コード | 2015-11-EA-EMM |
| 本文の言語 | 英語 |
| タイトル（和） | |
| サブタイトル（和） | |
| タイトル（英） | Estimation of sound pressure levels of direct sound and reflected sounds based on single-channel signal separation |
| サブタイトル（英） | |
| キーワード(1)（和/英） | Sound pressure level / Sound pressure level |
| キーワード(2)（和/英） | Single-channel signal / Single-channel signal |
| キーワード(3)（和/英） | Direct sound / Direct sound |
| キーワード(4)（和/英） | Reflected sound / Reflected sound |
| キーワード(5)（和/英） | Time difference of arrivals / Time difference of arrivals |
| キーワード(6)（和/英） | / |
| キーワード(7)（和/英） | / |
| キーワード(8)（和/英） | / |
| 第1著者 氏名（和/英/ヨミ） | Irwansyah / Irwansyah / |
| 第1著者 所属（和/英） | Kumamoto University (略称： 熊本大) Kumamoto University (略称： Kumamoto Univ.) |
| 第2著者 氏名（和/英/ヨミ） | Taira Onoguchi / Taira Onoguchi / |
| 第2著者 所属（和/英） | Kumamoto University (略称： 熊本大) Kumamoto University (略称： Kumamoto Univ.) |
| 第3著者 氏名（和/英/ヨミ） | Yoshifumi Chisaki / Yoshifumi Chisaki / |
| 第3著者 所属（和/英） | Kumamoto University (略称： 熊本大) Kumamoto University (略称： Kumamoto Univ.) |
| 講演者 | 第1著者 |
| 発表日時 | 2015-11-12 13:00:00 |
| 発表時間 | 30分 |
| 申込先研究会 | EA |
| 資料番号 | EA2015-24, EMM2015-45 |
| 巻番号（vol） | vol.115 |
| 号番号（no） | no.302(EA), no.303(EMM) |
| ページ範囲 | pp.1-6 |
| ページ数 | 6 |
| 発行日 | 2015-11-05 (EA, EMM) |
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